<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>扩展运算符应用</title>
</head>
<body>
    <div></div>
    <div></div>
    <div></div>
    <script>
        //1、数组合并
        // const kuaizi = ['王太利','肖央'];
        // const fenghuang =['曾毅','玲花'];
        //es 5 合并
        // const hebing = kuaizi.concat(fenghuang);
        // console.log(hebing);
        // const hebing2 = [...kuaizi,...fenghuang];
        // console.log(hebing2);
        //2、数组的克隆
        const sanzhihua = ['E','G','M'];
        const sanyecao = [...sanzhihua];//浅拷贝
        console.log(sanyecao);
        //3、将伪数组转为真正的数组
        const divs = document.querySelectorAll('div');
        console.log(divs);
        const divArr = [...divs];
        console.log(divArr);
    </script>
</body>
</html>